Synchronous to Asynchronous Conversion

Synchronous and Asynchronous Multimedia and Iranian EFL Learners’ Learning of Collocations

The use of effective multimedia instructions such as mobiles, computers, and the internet in language learning has turned out to be useful since the last decades. The impact of multimedia and synchronous approaches of computer-assisted language learning (CALL) on English as a foreign language (EFL) learners' learning of language skills and components has been studied to some extent. However, th...

Towards Asynchronous A-D Conversion

Analogue to digital (AD) converters with a xed conversion time are subject to errors due to metastability. These errors will occur in all converter designs with a bounded time for decisions, and are potentially severe. We estimate the frequency of these errors in a successive approximation converter, and compare the results with asynchronous designs using both a fully speed-independent, and a b...

Statechart methodology for the design, validation, and synthesis of large scale asynchronous systems

We apply a novel methodology, based on statecharts, to the design of large scale asynchronous systems. The design is specified at multiple levels, simulated, animated, and compiled into synthesizable VHDL code by using the ExpressV-HDL CAD tool . We add a validation sub-system to check correct operation. ExpressV-HDL is originally synchronous, but we employ it for asynchronous design by avoidin...

Direct Synchronous-Asynchronous Conversion System for Hybrid Electrical Vehicle Applications. An Energy-Based Modeling Approach

A Novel Asynchronous ADC Architecture

In this paper, a novel architecture for asynchronous analog-digital conversion is presented, designed using the NULL Convention Logic (NCL) paradigm. This analogto-digital converter (ADC) employs successive approximation and a one-hot encoded masking technique to digitize analog signals. The architecture scales readily to any given resolution by utilizing the one-hot encoded scheme to permit id...